<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script>
    let obj = {
      name: '张三',
      song: function () {
        console.log('唱歌')
      }
    }
    obj.song()
  </script>
</body>

</html>